Hilary Duff's 'heart aches' for Robert Carradine Hilary Duff has revealed her "heart aches" for her former Lizzie McGuire co-star Robert Carradine following his death at the age of 71. 24 February 2026 Hilary Duff's "heart aches" for her former Lizzie McGuire co-star Robert Carradine. Hilary Duff has paid tribute to Robert Carradine Robert - who played Hilary's onscreen dad Sam McGuire in the hit Disney teen show - has died aged 71 with his brother Keith Carradine confirming his sibling took his own life after a "nearly two-decade battle with bipolar disorder", a mental health condition which...